Main Experiment: Herbivore damage in site A in summer 2009

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This data is Private.

Brezzi Matteo, Schmid Bernhard, Martin Baruffol

Dataset Abstract

Leaf herbivory has been assessed on the 16 central individuals (8 when it is a monoculture) plots in order to test plant diversity effects and plant identity effects on arthropod herbivory. Differences of herbivory among the different feeding guilds has been recorded.

Dataset Design

For the plots that are not monocultures, the 16 central individuals have been measured. If some species were missing, we searched for their presence in the 100 central individuals. For monocultures, only the 8 central individuals were recorded. The individuals are assessed for herbivors according to a slightly simplified hebivory protocol from BACCARA in 2009. Whenever available, 12 leaves per sappling have been assessed for the quantity of each feeding guilds (see "variables_info" sheet). Whenever possible, 6 leaves where assessed in the upper canopy part and 6 leaves in the lowest canopy part, 3 leaves at the terminal part of the branch and 3 leaves at the basal part of the branch.

There is no total herbivory category. (Will come only in 2010 herbivory data)

We had three focal species: Schima superba (scs), Castanea henrii (cah) and Quercus serrata (qus). One goal was to have at least 5 individuals of them in each plot where they were present. If this numbre was not achieved within the 16 central individuals, we increase the reserch area up to the 196 most central individuals (14 x 14 core).

Rules to score herbivory:

There are five possible amount of herbivory damage: 0%; 1-5%; 6-25%; 26-50%; 51-75% and >75% and there is no “total damage” category. Those damage are then recorded as the mean within a cathegory (p.e. 6-25% equals 15% of leaf damage in the table).

Spatial Extent

Main experiment, SiteA
29°08'-29°11'N
117°90'-117°93'E

Temporal Extent

08-09/2009
Time needes to measure the 16 central individuals in all the plots during the census that is conducted every year in late summer/early autumn since 2009

Taxonomic Extent

all the plant species of the Main Experiment site A, fot the detailled species list see the "Categories" datasheet

Measurement Circumstances

Very hot. Sampling had to be stopped between 10 am and 2-3 pm

Data Analysis

quantification of herbivory in function of plant diversity, plant composition and plant species identity (focal plant species). In addition we can investigate if the diversity effects affect differentially the feeding guilds

Freeformat files (1)

Paper proposal submissions

Published

2014

Data columns available in the raw data part of this dataset

date_1
date at which the measurments were taken
Data group: Date time information
Keywords: date
Values
2009-08-25
2009-08-21
2009-08-23
2009-08-22
2009-08-24
plot_old
original coding of the plot follwing the nomenclature introduced by Matteo Brezzi), outdated! Please refer to the column "plot"
Data group: Helper
Keywords: Main Experiment, Site A, location
Values
b34
b38
b35
c32
c31
plot
plot in the main experiment at site A
Data group: Plot name Main experiment (letter, number code)
Values
B38
B35
C32
B34
C31
species
the plant species measured; Source: main experiment data, can bee seen in: http://www.bef-china.de/
Data group: Scientific plant species name
Keywords: species, taxon
Values
Castanea henryi
Castanopsis eyrei
Acer davidii
Castanopsis sclerophylla
Castanopsis carlesii
individual
code of the individual measured. The code reflects the position of the individual according to coordinates. The plot are composed by a square of 20 individuals x 20 individuals. Here the code numbers represent the X and Y coordinate; Source: main experiment data, can bee seen in: http://www.bef-china.de/; Datagroup description: Tree tags consist of 12 digits: The first 6 are the site plot name: _1_ site _2/3_ row, counting from North _4/5_ column, counting from west _6_ is the plot moved? Is it a quarter pot? The next 6 digits describe the tree individual _7/8_ type of individual (01 planned tree, 02 other tree than planted but in a given plot somewhere, 03 planned shrub, 04 other shrub within this plot) _9/10_ x grid position within plot, starting from southwest northwards _11/12 y grid position, starting from southwest eastwards
Data group: Helper
Keywords: tree, object
Values
03,05
03,07
03,08
03,03
03,04
position
Position of the respective individual within the plot; coded as XXYY
Data group: Helper
Keywords: tree, object, position
Values
0304
0307
0308
0303
0305
height
height of the focal plant; Instrumentation: ruler
Unit: Centimeters
Data group: Plant height
Keywords: height, size
Values
1
102
101
10
100
* Baruffol, M. also contributed to this column.
bd
basal diameter of the focal plant; Instrumentation: caliper; Datagroup description: variables to describe the individual and the leaf position and situation
Unit: Milimeters
Data group: Basal diameter
Keywords: basal diameter, size
Values
10
13
12
1
11
* Baruffol, M. also contributed to this column.
leave_nb
number of leaves of the focal plant ( usually counted up to around 150 leaves and estimated for greater numbers). For the coniferous it is the number of shoots
Unit: count
Data group: Plant leaf number
Keywords: leaf
Values
1
100
101
10
103
leaves
code of the particular leaf/shoot assessed for herbivory (random factor).
Data group: Helper
Values
10
1
11
12
2
young_old
the leaves of the broadleaves are either young (=0), when at the end of the branch and brighter colour, or old (=1). For the coniferous, this number match with the order of the part of the shoot where herbivory is assessed. Zero is the youngest possible; we measured up to 5 orders; Source: BACCARA herbivory record of 2009
Data group: Leaf Age
Keywords: leaf
Values
4
2
1
3
0
canopy_part
the canopy was divided in the upper part (=1) and lower part (=2), whenever the division was not possible it is coded with a zero; Source: BACCARA herbivory record of 2009
Data group: Position within canopy
Keywords: dominance
Values
0
1
2
chewer_prop
proportion of the leaf tissue removed by chewers; Instrumentation: eyes estimation
Data group: Herbivore damage
Keywords: herbivory, response variable, leaf damage, chewer
Values
0.025
0
0.625
0.15
0.375
dead_tis_prop
proportion of leaf tissue that is currently dead; Instrumentation: eyes estimation
Data group: Herbivore damage
Keywords: herbivory, response variable, leaf damage
Values
0
0.375
0.15
0.625
0.025
patho_prop
proportion of leaf tissue damaged by pathogens; Instrumentation: eyes estimation
Data group: Herbivore damage
Keywords: herbivory, response variable, leaf damage, pathogens
Values
0.625
0.025
0.375
0.15
0
skel_prop
proportion of the leaf tissue destroyed by skeletonizers; Instrumentation: eyes estimation
Data group: Herbivore damage
Keywords: herbivory, response variable, leaf damage, skeletonizer
Values
0.025
0.375
0.15
0.625
0
leaf_rol_prop
proportion of the leaf not available for photosynthesis because of leaf rollers; Instrumentation: eyes estimation
Data group: Herbivore damage
Keywords: herbivory, response variable, leaf damage, leaf roller
Values
0.025
0.375
0.625
0
0.15
stippler_prop
proportion of the leaf affected/destroyed by stipplers; Instrumentation: eyes estimation
Data group: Herbivore damage
Keywords: herbivory, response variable, leaf damage, stippler
Values
0
0.15
0.025
stippler_nb
number of stippler present on the leaf; Instrumentation: eyes estimation
Unit: count
Data group: Herbivore load
Keywords: herbivory, response variable, leaf damage, stippler
Values
1
0
4
2
miner_prop
proportion of the leaf affected by leaf miners; Instrumentation: eyes estimation
Data group: Herbivore damage
Keywords: herbivory, response variable, leaf damage, leaf miner
Values
0.15
0.375
0.025
0
miner_nb
number of leaf miners present on the leaf; Instrumentation: eyes estimation
Unit: count
Data group: Herbivore load
Keywords: herbivory, response variable, leaf damage, leaf miner
Values
2
0
3
1
gall_nb
number of gall on the leaf. No gall proportion because their presence did not seem to reduce the photosynthetic area; Instrumentation: eyes estimation
Unit: count
Data group: Herbivore load
Keywords: herbivory, response variable, leaf damage, gall
Values
0
browser_prop
proportion of the leaf damaged by browsers; Instrumentation: eyes estimation
Data group: Herbivore damage
Keywords: herbivory, response variable, leaf damage, browser
Values
0
0.025
l_tiers_prop
proportion of the leaf unavailable for photosynthesis because of leaf tiers; Instrumentation: eyes estimation
Data group: Herbivore damage
Keywords: herbivory, response variable, leaf damage, leaf tier
Values
0.875
1
0.375
0
B. Eater prop
proportion of bark eaten on the same branchlet where the leaves were measured; Instrumentation: eyes estimation
Data group: Herbivore damage
Keywords: branch, herbivory, response variable
Values
0
0.025
sp_nb
number of plant species in the plot (covariate plot level); Source: main experiment data, can bee seen in: http://www.bef-china.de/
Unit: count
Data group: Taxonomic biodiversity
Keywords: biodiversity
Values
16
24
2
4
1
resprouts
if the main stem was dead, how many resprout has done the focal individual, otherwise zero
Unit: count
Data group: Multistem
Keywords: tree
Values
3
1
0
4
2
* Baruffol, M. also contributed to this column.
deci_evergreen
phenology of the plant species; Source: www.eFloras.org
Data group: Leaf habit
Keywords: leaf, leaf habit
Values
e
d